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1313103100 = 225213131031
BaseRepresentation
bin100111001000100…
…0101110011111100
310101111211112211011
41032101011303330
510142123244400
6334144205004
744353122631
oct11621056374
93344745734
101313103100
11614237881
12307909764
1317c0750aa
14c6572188
157a42c8ba
hex4e445cfc

1313103100 has 18 divisors (see below), whose sum is σ = 2849433944. Its totient is φ = 525241200.

The previous prime is 1313103079. The next prime is 1313103109. The reversal of 1313103100 is 13013131.

It is a happy number.

It is a super-2 number, since 2×13131031002 = 3448479502459220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313103109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6565416 + ... + 6565615.

Almost surely, 21313103100 is an apocalyptic number.

1313103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313103100 is an abundant number, since it is smaller than the sum of its proper divisors (1536330844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313103100 is a wasteful number, since it uses less digits than its factorization.

1313103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131045 (or 13131038 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1313103100 is about 36236.7644802899. The cubic root of 1313103100 is about 1095.0474601171.

Adding to 1313103100 its reverse (13013131), we get a palindrome (1326116231).

The spelling of 1313103100 in words is "one billion, three hundred thirteen million, one hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 13131031 26262062 52524124 65655155 131310310 262620620 328275775 656551550 1313103100